Power transfer mechanism for a parking brake assembly
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United States of America Patent
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Jun 5, 2018
Issued Date -
Dec 28, 2017
app pub date -
Jun 24, 2016
filing date -
Jun 24, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A brake assembly including a first brake piston; a second brake piston; and a parking brake assembly. The parking brake assembly includes a power transfer mechanism and a motor providing power to the power transfer mechanism. During a parking brake apply, the power transfer mechanism provides the power to both the first brake piston and the second brake piston so that both the first brake piston and the second brake piston are moved until a resistance of the second brake piston becomes higher than a resistance of the first brake piston. The power transfer mechanism then transfers the power from the second brake piston to the first brake piston so that the second brake piston ceases to move and additional power is supplied to the first brake piston.
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